In mixing bowl, combine 4 cups flour, dry cake mix, yeast and warm water until smooth, Add enough remaining flour to form a soft dough, Turn onto a lightly floured surface, knead until smooth and elastic, about 5 minutes,______, Cover and let rise until doubled, about 45 minutes, Punch dough down, Turn onto a lightly floured surface, divide in half, Roll each portion into a 14 x 10 inch rectangle, brush with butter and sprinkle with sugar and cinnamon, Roll up jelly-roll style, starting with a long side, Cut each roll into 12 slices, place cut side down in two greased 13 x 9 x 2 inch baking pans, Cover and let rise until almost doubled, about 20 minutes, Bake at 400° for 10 to 15 minutes or until golden brown, Cool for 20 minutes,